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      1 /*
      2 * Conditions Of Use
      3 *
      4 * This software was developed by employees of the National Institute of
      5 * Standards and Technology (NIST), an agency of the Federal Government.
      6 * Pursuant to title 15 Untied States Code Section 105, works of NIST
      7 * employees are not subject to copyright protection in the United States
      8 * and are considered to be in the public domain.  As a result, a formal
      9 * license is not needed to use the software.
     10 *
     11 * This software is provided by NIST as a service and is expressly
     12 * provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
     13 * OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
     14 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
     15 * AND DATA ACCURACY.  NIST does not warrant or make any representations
     16 * regarding the use of the software or the results thereof, including but
     17 * not limited to the correctness, accuracy, reliability or usefulness of
     18 * the software.
     19 *
     20 * Permission to use this software is contingent upon your acceptance
     21 * of the terms of this agreement
     22 *
     23 * .
     24 *
     25 */
     26 package gov.nist.javax.sip.parser;
     27 
     28 import gov.nist.javax.sip.header.*;
     29 import gov.nist.core.*;
     30 import java.text.ParseException;
     31 
     32 /**
     33  * Parser for Accept header.
     34  *
     35  * @version 1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:57:56 $
     36  *
     37  * @author Olivier Deruelle
     38  * @author M. Ranganathan   <br/>
     39  *
     40  *
     41  */
     42 public class AcceptParser extends ParametersParser {
     43 
     44     /**
     45      * Creates a new instance of Accept Parser
     46      * @param accept  the header to parse
     47      */
     48     public AcceptParser(String accept) {
     49         super(accept);
     50     }
     51 
     52     /**
     53      * Constructor
     54      * @param lexer the lexer to use to parse the header
     55      */
     56     protected AcceptParser(Lexer lexer) {
     57         super(lexer);
     58     }
     59 
     60     /**
     61      * parse the Accept  String header
     62      * @return SIPHeader (AcceptList  object)
     63      * @throws SIPParseException if the message does not respect the spec.
     64      */
     65     public SIPHeader parse() throws ParseException {
     66 
     67         if (debug)
     68             dbg_enter("AcceptParser.parse");
     69         AcceptList list = new AcceptList();
     70 
     71         try {
     72             headerName(TokenTypes.ACCEPT);
     73 
     74             Accept accept = new Accept();
     75             accept.setHeaderName(SIPHeaderNames.ACCEPT);
     76 
     77             this.lexer.SPorHT();
     78             this.lexer.match(TokenTypes.ID);
     79             Token token = lexer.getNextToken();
     80             accept.setContentType(token.getTokenValue());
     81             this.lexer.match('/');
     82             this.lexer.match(TokenTypes.ID);
     83             token = lexer.getNextToken();
     84             accept.setContentSubType(token.getTokenValue());
     85             this.lexer.SPorHT();
     86 
     87             super.parse(accept);
     88             list.add(accept);
     89 
     90             while (lexer.lookAhead(0) == ',') {
     91                 this.lexer.match(',');
     92                 this.lexer.SPorHT();
     93 
     94                 accept = new Accept();
     95 
     96                 this.lexer.match(TokenTypes.ID);
     97                 token = lexer.getNextToken();
     98                 accept.setContentType(token.getTokenValue());
     99                 this.lexer.match('/');
    100                 this.lexer.match(TokenTypes.ID);
    101                 token = lexer.getNextToken();
    102                 accept.setContentSubType(token.getTokenValue());
    103                 this.lexer.SPorHT();
    104                 super.parse(accept);
    105                 list.add(accept);
    106 
    107             }
    108             return list;
    109         } finally {
    110             if (debug)
    111                 dbg_leave("AcceptParser.parse");
    112         }
    113     }
    114 }
    115 /*
    116  * $Log: AcceptParser.java,v $
    117  * Revision 1.7  2009/07/17 18:57:56  emcho
    118  * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
    119  *
    120  * Revision 1.6  2006/07/13 09:02:16  mranga
    121  * Issue number:
    122  * Obtained from:
    123  * Submitted by:  jeroen van bemmel
    124  * Reviewed by:   mranga
    125  * Moved some changes from jain-sip-1.2 to java.net
    126  *
    127  * CVS: ----------------------------------------------------------------------
    128  * CVS: Issue number:
    129  * CVS:   If this change addresses one or more issues,
    130  * CVS:   then enter the issue number(s) here.
    131  * CVS: Obtained from:
    132  * CVS:   If this change has been taken from another system,
    133  * CVS:   then name the system in this line, otherwise delete it.
    134  * CVS: Submitted by:
    135  * CVS:   If this code has been contributed to the project by someone else; i.e.,
    136  * CVS:   they sent us a patch or a set of diffs, then include their name/email
    137  * CVS:   address here. If this is your work then delete this line.
    138  * CVS: Reviewed by:
    139  * CVS:   If we are doing pre-commit code reviews and someone else has
    140  * CVS:   reviewed your changes, include their name(s) here.
    141  * CVS:   If you have not had it reviewed then delete this line.
    142  *
    143  * Revision 1.3  2006/06/19 06:47:27  mranga
    144  * javadoc fixups
    145  *
    146  * Revision 1.2  2006/06/16 15:26:28  mranga
    147  * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
    148  *
    149  * Revision 1.1.1.1  2005/10/04 17:12:35  mranga
    150  *
    151  * Import
    152  *
    153  *
    154  * Revision 1.4  2004/01/22 13:26:31  sverker
    155  * Issue number:
    156  * Obtained from:
    157  * Submitted by:  sverker
    158  * Reviewed by:   mranga
    159  *
    160  * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
    161  *
    162  * CVS: ----------------------------------------------------------------------
    163  * CVS: Issue number:
    164  * CVS:   If this change addresses one or more issues,
    165  * CVS:   then enter the issue number(s) here.
    166  * CVS: Obtained from:
    167  * CVS:   If this change has been taken from another system,
    168  * CVS:   then name the system in this line, otherwise delete it.
    169  * CVS: Submitted by:
    170  * CVS:   If this code has been contributed to the project by someone else; i.e.,
    171  * CVS:   they sent us a patch or a set of diffs, then include their name/email
    172  * CVS:   address here. If this is your work then delete this line.
    173  * CVS: Reviewed by:
    174  * CVS:   If we are doing pre-commit code reviews and someone else has
    175  * CVS:   reviewed your changes, include their name(s) here.
    176  * CVS:   If you have not had it reviewed then delete this line.
    177  *
    178  */
    179